Windows 10: BOOTMGR is Missing

Hi,

Having some issues with a desktop upgraded to Windows 10 from Windows 7 and was hoping someone might be able to help. The PC was upgraded last Friday with no issues, and has been used and rebooted several times since then, again with no issues encountered. Last night I found it had rebooted itself and was displaying a BOOTMGR IS MISSING error. Rebooted and got the same error again.

I went in to the BIOS to check the boot order, and found that my Primary hard drive was no longer listed and was not available for selection, however I was able to Override and force it to boot in to my Primary drive, so the Windows install is still good and it isn't a bad cable.

On booting in to Windows I ran Chkdsk and found no errors on the drive. I used Advanced Startup to boot in to the Recovery Environment, and tried Startup Repair. Startup Repair could not fix the problem. Thanks, Startup Repair.
Booted to the Command Line and tried bootrec.exe /scanos and it did not identify a Windows installation on the Primary hard drive.

Used Override to boot in to Windows again and had a look at Disk Management and this is where I get out of my depth:



I would have assumed that the System Reserved partition should hold the Boot records, and the main C:\ partition should be the Active one but that doesn't seem to be the case, and I haven't changed anything.

I do have a backup of all my data on an external drive so I can do a clean install if required but am hoping there is a simple fix - any advice gratefully received!

:)

 

booting

Hi,

These should help :

Boot Manager is missing

https://support.microsoft.com/en-us...tmgr-is-missing-press-ctrl-alt-del-to-restart

BOOTMGR is Missing: Fix for Windows Vista, 7, 8, 8.1, 10

BOOTMGR is Missing: Fix for Windows Vista, 7, 8, 8.1, 10

Hope this helps.

--------------------------------------------------------------------------------------------

Rob Brown -
Microsoft MVP <- profile - Windows and Devices for IT : Bicycle - Mark Twain said it right.

 

Scary Startup.

We are volunteers willing to help you try to resolve this issue. I am Rob, a 10 time and dual award MVP specializing in Windows troubleshooting and Bluescreen analysis.

These should help :

Boot Manager is missing

https://support.microsoft.com/en-us/help/262280...

BOOTMGR is Missing: Fix for Windows Vista, 7, 8, 8.1, 10

BOOTMGR is Missing: Fix for Windows Vista, 7, 8, 8.1, 10

Please let us know the results and if you need further assistance.

 

Download:
Windows 10 64 bit: Rescue6.1.1081X64.iso - Google Drive
Windows 10 32 bit: Rescue6.1.871X86.iso - Google Drive

Use Rufus - Create bootable USB to create a bootable USB.

Boot up from the USB and on the left panel, click on "Fix Windows Boot Problem"

 

What is on drive D:\ ??

as you have two active partitions - when the system reserved should be the active one..

 

Thanks topgundcp, will try that later at home.

D:\ is just a spare hard drive with some data on. System Reserved is the Active partition on C:\ - does each drive not have a single Active partition?

 

Kyhi: Good catch.
D: Should be marked "inactive"
From Admin command prompt:

• diskpart
• select disk 1
• select par 1
• inactive
• exit

 

Marked D:\ as inactive and used the recovery software as described by topgundcp - all fixed. Thanks folks!

 

Please update link for 64 bit

 

Could you update file for 64 bit?

 

Here's a new version 6.1.1081:
Rescue6.1.1081X64.iso - Google Drive

 

Thanks! Finally i can enjoy my computer again.

 

Hi topgundcp, could you please update a the link for the 86 version

 

You can create your own rescue media by downloading the Macrium Reflect Program..
Macrium Software | Macrium Reflect Free

After installation - the First thing to Popup is to create a rescue drive...
Does require a download for additional files..

 

Thanks Kyhi, unfortunately my desktop wont boot, I see the windows logo and spinning wheel and then a black screen, this why I wanted the iso. Does this program make an iso for the 86 version?